Buprenorphine has become both medication and dope: a treatment with considerable successes and also failures, as well as a street and prison drug bedeviling local authorities. It has attracted unscrupulous doctors and caused more health complications and deaths than its advocates acknowledge.
Psychosociological theory. In addition to theories of aging based on molecules and cells, there also exists a âpsychosociologicalâ theory of aging. As people grow older, their behaviour changes, their social interactions change, and the activities in which they engage change.
1 Accumulative-waste theory: The biological theory of ageing that points to a buildup in cells of waste products that presumably interfere with metabolism. 2  Evidence supporting this theory is the presence of a waste product called lipofuscin leading to age pigment. Accumulative-waste theory: The biological theory of ageing that points to a buildup in cells of waste products that presumably interfere with metabolism. 2  Evidence supporting this theory is the presence of a waste product called lipofuscin leading to age pigment.